From d0709a65181beb787ef3f58cfe45536a2bb254c8 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 25 Feb 2008 16:27:46 +0100 Subject: mac80211: RCU-ify STA info structure access This makes access to the STA hash table/list use RCU to protect against freeing of items. However, it's not a true RCU, the copy step is missing: whenever somebody changes a STA item it is simply updated. This is an existing race condition that is now somewhat understandable. This patch also fixes the race key freeing vs. STA destruction by making sure that sta_info_destroy() is always called under RTNL and frees the key. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/mesh.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'net/mac80211/mesh.c') diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index ebe1a7a80ba..9de1ccc11cf 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -83,11 +83,10 @@ bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie, /** * mesh_accept_plinks_update: update accepting_plink in local mesh beacons * - * @dev: mesh interface in which mesh beacons are going to be updated + * @sdata: mesh interface in which mesh beacons are going to be updated */ -void mesh_accept_plinks_update(struct net_device *dev) +void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); bool free_plinks; /* In case mesh_plink_free_count > 0 and mesh_plinktbl_capacity == 0, -- cgit v1.2.3